/* =============================================================
   PLINTH — Estudio de Arquitectura
   1. Tokens
   ============================================================= */
:root {
  --color-bg: #f6f3ee;
  --color-bg-alt: #eee9e0;
  --color-carbon: #17181a;
  --color-carbon-soft: #26262a;
  --color-grey: #6f6b64;
  --color-grey-light: #a39d92;
  --color-line: #dcd6ca;
  --color-white: #ffffff;
  --color-accent: #a5673f;
  --color-accent-soft: #c98a5e;

  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --header-h: 84px;
  --container-w: 1320px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  /* Firma personal del diseñador (assets/signature-kit/) — el único valor
     que hay que tocar al reutilizar el kit en otro proyecto. Footer de
     este sitio es oscuro, así que va en un tono claro muy tenue. */
  --signature-color: rgba(246, 243, 238, 0.45);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-carbon);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
input, textarea { font: inherit; color: inherit; }
p { text-wrap: pretty; }
ul { list-style: none; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

::selection { background: var(--color-accent); color: var(--color-white); }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* =============================================================
   3. Utilities
   ============================================================= */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  padding: 0.7rem 1.1rem;
  background: var(--color-carbon);
  color: var(--color-bg);
  border-radius: 4px;
  font-weight: 500;
  transition: top 0.3s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.section {
  padding-block: clamp(4.5rem, 9vw, 8rem);
  position: relative;
}

.section-head {
  max-width: 46rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-head.center { margin-inline: auto; text-align: center; }

.section--alt { background: var(--color-bg-alt); }

section[id] { scroll-margin-top: var(--header-h); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  border-radius: 2px;
  transition: background-color 0.35s var(--ease-out), color 0.35s var(--ease-out), border-color 0.35s var(--ease-out);
}
.btn--primary {
  background: var(--color-carbon);
  color: var(--color-bg);
  border-color: var(--color-carbon);
}
.btn--primary:hover { background: var(--color-accent); border-color: var(--color-accent); }
.btn--ghost {
  background: transparent;
  color: var(--color-carbon);
}
.btn--ghost:hover { background: var(--color-carbon); color: var(--color-bg); }

/* Reveal-on-scroll (used everywhere EXCEPT the hero clippings) */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-split] { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* =============================================================
   4. Header / Nav
   ============================================================= */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 500;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background-color 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), height 0.3s var(--ease-out);
}

.site-header.is-scrolled {
  background: rgba(246, 243, 238, 0.92);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  box-shadow: 0 1px 0 var(--color-line);
  height: 72px;
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-link {
  display: flex;
  align-items: center;
  color: var(--color-white);
  transition: color 0.4s var(--ease-out);
}
.site-header.is-scrolled .brand-link { color: var(--color-carbon); }
.brand-mark { width: 34px; height: 34px; }

.site-nav { display: none; }

@media (min-width: 960px) {
  .site-nav {
    display: flex;
    align-items: center;
    gap: clamp(1.5rem, 2.4vw, 2.6rem);
  }
  .site-nav a {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--color-white);
    position: relative;
    padding-block: 0.4rem;
    transition: color 0.4s var(--ease-out);
  }
  .site-header.is-scrolled .site-nav a { color: var(--color-carbon); }
  .site-nav a::after {
    content: '';
    position: absolute;
    left: 0; bottom: 0;
    width: 100%; height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s var(--ease-out);
  }
  .site-nav a:hover::after,
  .site-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
  .nav-cta {
    border: 1px solid currentColor;
    padding: 0.6rem 1.3rem !important;
    border-radius: 2px;
  }
  .nav-cta::after { display: none; }
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  color: var(--color-white);
  transition: color 0.4s var(--ease-out);
}
.site-header.is-scrolled .nav-toggle { color: var(--color-carbon); }
.nav-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.35s var(--ease-out), opacity 0.35s var(--ease-out);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (min-width: 960px) {
  .nav-toggle { display: none; }
}

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 400;
  background: var(--color-carbon);
  color: var(--color-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--gutter);
  transform: translateY(-100%);
  transition: transform 0.5s var(--ease-out);
}
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav ul { display: flex; flex-direction: column; gap: 1.1rem; }
.mobile-nav a { font-family: var(--font-serif); font-size: clamp(1.8rem, 8vw, 2.6rem); }

@media (min-width: 960px) {
  .mobile-nav { display: none; }
}

/* =============================================================
   5. Hero — parallax de recortes (mecánica exclusiva de esta sección)
   ============================================================= */
.hero-wrapper {
  position: relative;
  height: 350vh;
}

@media (max-width: 719px) {
  .hero-wrapper { height: 260vh; }
}

.hero-pin {
  position: sticky;
  top: 0;
  height: 100svh;
  height: 100vh;
  overflow: hidden;
  background: var(--color-carbon);
}

.hero-clippings {
  position: absolute;
  inset: 0;
}

.clip {
  position: absolute;
  overflow: hidden;
  border-radius: 2px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5);
  will-change: transform, opacity;
  opacity: 0;
}
.clip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.15) contrast(1.05);
}

.clip-1 { top: 6%;  left: 5%;  width: 24vw; height: 32vw; }
.clip-2 { top: 12%; left: 55%; width: 22vw; height: 28vw; }
.clip-3 { top: 46%; left: 14%; width: 17vw; height: 22vw; }
.clip-4 { top: 6%;  left: 72%; width: 21vw; height: 38vw; }
.clip-5 { top: 52%; left: 42%; width: 19vw; height: 19vw; }
.clip-6 { top: 18%; left: 30%; width: 19vw; height: 32vw; }
.clip-7 { top: 58%; left: 6%;  width: 27vw; height: 20vw; }

@media (max-width: 719px) {
  .clip-1 { top: 8%;  left: 6%;  width: 46vw; height: 38vw; }
  .clip-2 { top: 46%; left: 48%; width: 44vw; height: 34vw; }
  .clip-4 { top: 8%;  left: 48%; width: 42vw; height: 46vw; }
  .clip-6 { top: 48%; left: 4%;  width: 40vw; height: 36vw; }
  .clip-3, .clip-5, .clip-7 { display: none; }
}

.hero-content {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--gutter);
  pointer-events: none;
}

.hero-badge {
  padding: 2.2rem clamp(1.5rem, 5vw, 3.5rem);
  background: rgba(23, 24, 26, 0.38);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 4px;
}

.hero-logo {
  width: clamp(220px, 34vw, 380px);
  color: var(--color-white);
  margin-inline: auto;
}

.hero-tagline {
  margin-top: 1.4rem;
  color: var(--color-bg);
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  font-weight: 300;
  letter-spacing: 0.02em;
  max-width: 30ch;
  margin-inline: auto;
}

.hero-scroll-cue {
  position: absolute;
  bottom: 2.2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  color: var(--color-bg);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.75;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}
.hero-scroll-cue::after {
  content: '';
  width: 1px;
  height: 34px;
  background: currentColor;
  animation: scrollCue 2.2s var(--ease-soft) infinite;
}
@keyframes scrollCue {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0.2; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0.2; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-scroll-cue::after { animation: none; }
}

/* =============================================================
   6. Proyectos
   ============================================================= */
/*
  Grid sin huecos garantizado para CUALQUIER número de proyectos (no solo el
  actual), sin JS: la base es de 6 columnas en desktop y cada tarjeta normal
  ocupa 2 (equivale visualmente a 3 columnas). Cuando la última fila queda
  incompleta, selectores puramente estructurales (:last-child /
  :nth-last-child, sin contar nada por JS) le dan a las tarjetas sobrantes
  el ancho justo para rellenar la fila entera:
    - resto 0 (N múltiplo de 3): última fila ya tiene 3 tarjetas normales
      (2+2+2 = 6) → no se necesita ningún ajuste.
    - resto 1: la última tarjeta queda sola → pasa a span 6 (fila completa).
    - resto 2: las dos últimas tarjetas quedan solas → pasan a span 3 cada
      una (3+3 = 6, fila completa).
  Verificado a mano para N = 5, 6, 7, 8 y 9 tarjetas: en los cinco casos
  cada fila queda completamente rellena, sin ninguna celda vacía.
  (Se descarta a propósito la variación decorativa "cada 3ª tarjeta más
  ancha": combinarla con este relleno de última fila para un N arbitrario
  es justo lo que producía huecos intermitentes antes.)
*/
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.2rem, 2.5vw, 2rem);
}

@media (min-width: 720px) and (max-width: 1279.98px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  /* resto 1 en grid de 2 columnas: la última tarjeta sola ocupa toda la fila */
  .project-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    aspect-ratio: 8 / 5;
  }
}

@media (min-width: 1280px) {
  .projects-grid {
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: clamp(260px, 26vw, 400px);
  }
  .project-card { grid-column: span 2; }
  .project-card:last-child:nth-child(3n+1) { grid-column: span 6; }
  .project-card:nth-last-child(2):nth-child(3n+1) { grid-column: span 3; }
  .project-card:last-child:nth-child(3n+2) { grid-column: span 3; }
}

.project-card {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  aspect-ratio: 4 / 5;
  cursor: pointer;
}
@media (min-width: 1280px) {
  .project-card { aspect-ratio: auto; height: 100%; }
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease-out), filter 1.1s var(--ease-out);
}
.project-card:hover img,
.project-card:focus-within img { transform: scale(1.06); filter: grayscale(0); }

.project-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.6rem;
  background: linear-gradient(0deg, rgba(23,24,26,0.82) 0%, rgba(23,24,26,0.05) 55%, rgba(23,24,26,0) 100%);
  color: var(--color-white);
}
.project-overlay .eyebrow { color: var(--color-accent-soft); margin-bottom: 0.4rem; }
.project-overlay h3 {
  font-size: clamp(1.2rem, 1.6vw, 1.55rem);
  transform: translateY(8px);
  opacity: 0.92;
  transition: transform 0.5s var(--ease-out);
}
.project-card:hover .project-overlay h3,
.project-card:focus-within .project-overlay h3 { transform: translateY(0); opacity: 1; }

/* =============================================================
   7. Estudio
   ============================================================= */
.studio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (min-width: 960px) {
  .studio-grid { grid-template-columns: 1fr 1fr; }
  .studio-grid.reverse { direction: rtl; }
  .studio-grid.reverse > * { direction: ltr; }
}

.studio-figure {
  overflow: hidden;
  border-radius: 2px;
  aspect-ratio: 4/5;
}
.studio-figure img { width: 100%; height: 100%; object-fit: cover; }

.studio-text p { color: var(--color-grey); margin-top: 1.1rem; max-width: 42ch; }
.studio-text p + p { margin-top: 0.9rem; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-line);
}
.stat-num {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--color-accent);
}
.stat-label {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--color-grey);
  margin-top: 0.3rem;
}

/* =============================================================
   8. Servicios
   ============================================================= */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}
@media (min-width: 720px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1280px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); }
}

.service-card {
  background: var(--color-bg);
  padding: clamp(1.8rem, 3vw, 2.6rem);
  transition: background-color 0.4s var(--ease-out);
}
.service-card:hover { background: var(--color-bg-alt); }
.service-icon {
  width: 40px; height: 40px;
  color: var(--color-accent);
  margin-bottom: 1.6rem;
}
.service-card h3 { font-size: 1.25rem; margin-bottom: 0.7rem; }
.service-card p { color: var(--color-grey); font-size: 0.94rem; }

/* =============================================================
   9. Proceso — timeline
   ============================================================= */
.timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
@media (min-width: 720px) {
  .timeline { grid-template-columns: repeat(5, 1fr); gap: 1.5rem; }
}

.timeline-step {
  position: relative;
  padding: 2rem 0;
  border-top: 1px solid var(--color-line);
}
@media (min-width: 720px) {
  .timeline-step { padding: 0; border-top: 0; }
  .timeline-step::before {
    content: '';
    display: block;
    height: 1px;
    background: var(--color-line);
    margin-bottom: 2rem;
  }
}

.timeline-num {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-accent);
  margin-bottom: 0.8rem;
}
.timeline-step h3 { font-size: 1.1rem; margin-bottom: 0.6rem; }
.timeline-step p { color: var(--color-grey); font-size: 0.9rem; }

/* =============================================================
   10. Equipo
   ============================================================= */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
@media (min-width: 720px) {
  .team-grid { grid-template-columns: repeat(4, 1fr); }
}

.team-card { text-align: center; }
.team-avatar {
  aspect-ratio: 1;
  border-radius: 2px;
  background: var(--color-carbon);
  margin-bottom: 1.1rem;
  position: relative;
  overflow: hidden;
}
.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Tratamiento uniforme: aunque las 4 fotos originales varíen un poco,
     este filtro + el overlay de abajo fuerzan una misma paleta neutra. */
  filter: grayscale(0.55) contrast(1.08) brightness(0.96);
}
.team-avatar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(23,24,26,0.15) 30%, rgba(165,103,63,0.35));
  mix-blend-mode: multiply;
}
.team-card h3 { font-size: 1.05rem; }
.team-role { font-size: 0.82rem; color: var(--color-grey); margin-top: 0.2rem; }

/* =============================================================
   11. Contacto
   ============================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
}
@media (min-width: 960px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

.field { margin-bottom: 1.4rem; }
.field label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-grey);
  margin-bottom: 0.5rem;
}
.field input, .field textarea {
  width: 100%;
  padding: 0.85rem 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--color-line);
  transition: border-color 0.3s var(--ease-out);
}
.field input:focus, .field textarea:focus { border-color: var(--color-carbon); outline: none; }
.field textarea { resize: vertical; min-height: 110px; }
.field-error {
  display: none;
  color: var(--color-accent);
  font-size: 0.78rem;
  margin-top: 0.4rem;
}
.field.has-error input,
.field.has-error textarea { border-color: var(--color-accent); }
.field.has-error .field-error { display: block; }

.form-status {
  margin-top: 1.2rem;
  font-size: 0.9rem;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.success { color: #4d6b4f; }

.contact-info-item { margin-bottom: 1.6rem; }
.contact-info-item .eyebrow { margin-bottom: 0.4rem; }
.contact-info-item p, .contact-info-item a { color: var(--color-grey); }
.contact-info-item a:hover { color: var(--color-accent); }

.map-frame {
  margin-top: 2rem;
  aspect-ratio: 16/9;
  border: 1px solid var(--color-line);
  position: relative;
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 32px 32px;
  background-color: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
}
.map-pin { width: 30px; height: 30px; color: var(--color-accent); }

/* =============================================================
   12. Footer
   ============================================================= */
.site-footer {
  background: var(--color-carbon);
  color: var(--color-bg);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(246,243,238,0.15);
}
@media (min-width: 960px) {
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
}
.footer-brand-mark { width: 220px; color: var(--color-bg); }
.footer-tagline { margin-top: 1.2rem; color: var(--color-grey-light); max-width: 32ch; }

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-grey-light);
  margin-bottom: 1.1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.7rem; }
.footer-col a { transition: color 0.3s var(--ease-out); }
.footer-col a:hover { color: var(--color-accent-soft); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  font-size: 0.82rem;
  color: var(--color-grey-light);
}
.social-links { display: flex; gap: 1rem; }
.social-links a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(246,243,238,0.2);
  border-radius: 50%;
  transition: border-color 0.3s var(--ease-out), color 0.3s var(--ease-out);
}
.social-links a:hover { border-color: var(--color-accent); color: var(--color-accent-soft); }
.social-links svg { width: 16px; height: 16px; }

/* Firma personal — assets/signature-kit/. Bloque final, separado del resto
   del footer del estudio; solo --signature-color cambia entre proyectos. */
.site-signature {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(246, 243, 238, 0.08);
  display: flex;
  justify-content: center;
}
.site-signature a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--signature-color);
  transition: opacity 0.3s var(--ease-out);
}
.site-signature a:hover,
.site-signature a:focus-visible { opacity: 0.85; }
.site-signature__mark {
  width: 18px;
  height: 18px;
  display: block;
}
.site-signature__text {
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  text-transform: none;
  font-family: inherit;
}

/* =============================================================
   13. Hero title typography (shared across headings)
   ============================================================= */
.h-display {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
}
.h-section {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
}

/* =============================================================
   14. Breakpoint reference
   Mobile-first. min-width steps: 540 / 720 / 960 / 1280 / 1600
   ============================================================= */